Base | Representation |
---|---|
bin | 110000011100… |
… | …1110001000010 |
3 | 1202210120120220 |
4 | 1200321301002 |
5 | 23000334214 |
6 | 2304243510 |
7 | 425626401 |
oct | 140716102 |
9 | 52716526 |
10 | 25402434 |
11 | 13380252 |
12 | 8610596 |
13 | 5355435 |
14 | 3533638 |
15 | 236b9a9 |
hex | 1839c42 |
25402434 has 16 divisors (see below), whose sum is σ = 52557120. Its totient is φ = 8175440.
The previous prime is 25402417. The next prime is 25402439. The reversal of 25402434 is 43420452.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (25402439) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72822 + ... + 73169.
It is an arithmetic number, because the mean of its divisors is an integer number (3284820).
Almost surely, 225402434 is an apocalyptic number.
25402434 is an abundant number, since it is smaller than the sum of its proper divisors (27154686).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25402434 is a wasteful number, since it uses less digits than its factorization.
25402434 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 146025.
The product of its (nonzero) digits is 3840, while the sum is 24.
The square root of 25402434 is about 5040.0827374161. The cubic root of 25402434 is about 293.9623951162.
Adding to 25402434 its reverse (43420452), we get a palindrome (68822886).
The spelling of 25402434 in words is "twenty-five million, four hundred two thousand, four hundred thirty-four".
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